Extend website screenshot

Extend

Extend is a product and shipping protection platform for merchants and ecommerce brands. Its API lets merchants surface extended-warranty and shipping-protection offers at checkout and post-purchase, create and manage protection contracts, process orders and line items, file and track claims, and manage service orders, refunds, and leads. Extend provides separate demo (sandbox) and production environments, header-based date versioning, OAuth2 client-credentials authentication with short-lived access tokens, idempotency keys on writes, and webhooks for claim and service-order status changes, alongside client-side SDKs and prebuilt commerce-platform integrations for Shopify, BigCommerce, Magento, WooCommerce, and Salesforce Commerce Cloud.

Extend publishes 1 API on the APIs.io network. Tagged areas include Company, Consumer, Product Protection, Extended Warranty, and Shipping Protection.

The Extend catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Extend’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, changelog, authentication, and 20 more developer resources.

42.5/100 developing ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2
AccessSelf serve
1 APIs 1 MCP Servers
CompanyConsumerProduct ProtectionExtended WarrantyShipping ProtectionE-CommerceWarrantyClaimsContractsRetailInsurance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2
Composite quality — 42.5/100 · developing
Contract Quality 9.1 / 21
Developer Ergonomics 8.9 / 17
Access Clarity 4.7 / 17
Operational Transparency 3.8 / 11
Contract Governance 1.9 / 10
Discoverability 6.5 / 9
Regulatory Posture 5.7 / 15
Agent readiness — 27/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Insurance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/extend: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Extend API

Extend's REST API for product and shipping protection: manage offers, contracts, orders and line items, refunds, claims, service orders, and leads. Header-based date versioning;...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Extend MCP Server

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Extend Webhooks

ASYNCAPI

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Extend Authentication

oauth2 · 2 schemes

SECURITY

Extend Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: extend
name: Extend
description: Extend is a product and shipping protection platform for merchants and ecommerce brands. Its API lets merchants
  surface extended-warranty and shipping-protection offers at checkout and post-purchase, create and manage protection contracts,
  process orders and line items, file and track claims, and manage service orders, refunds, and leads. Extend provides separate
  demo (sandbox) and production environments, header-based date versioning, OAuth2 client-credentials authentication with
  short-lived access tokens, idempotency keys on writes, and webhooks for claim and service-order status changes, alongside
  client-side SDKs and prebuilt commerce-platform integrations for Shopify, BigCommerce, Magento, WooCommerce, and Salesforce
  Commerce Cloud.
url: https://raw.githubusercontent.com/api-evangelist/extend/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- softbank-vision-fund
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
image: https://avatars.githubusercontent.com/u/46018312?v=4
tags:
- Company
- Consumer
- Product Protection
- Extended Warranty
- Shipping Protection
- E-Commerce
- Warranty
- Claims
- Contracts
- Retail
- Insurance
tags_raw:
- Company
- Consumer
- Product Protection
- Extended Warranty
- Shipping Protection
- Ecommerce
- Warranty
- Claims
- Contracts
- Retail
- Insurance
apis:
- name: Extend API
  description: 'Extend''s REST API for product and shipping protection: manage offers, contracts, orders and line items, refunds,
    claims, service orders, and leads. Header-based date versioning; OAuth2 client-credentials auth via the X-Extend-Access-Token
    header; idempotent writes via X-Idempotency-Key.'
  humanURL: https://docs.extend.com/docs/getting-started-with-extends-api
  baseURL: https://api.helloextend.com
  tags:
  - Product Protection
  - Shipping Protection
  - Warranty
  - E-Commerce
  tags_raw:
  - Product Protection
  - Shipping Protection
  - Warranty
  - Ecommerce
  properties:
  - type: APIReference
    url: https://docs.extend.com/reference
  - type: Sandbox
    url: https://api-demo.helloextend.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/extend-domain-security.yml
- type: DeveloperPortal
  url: https://docs.extend.com
- type: Documentation
  url: https://docs.extend.com/docs
- type: APIReference
  url: https://docs.extend.com/reference
- type: GettingStarted
  url: https://docs.extend.com/docs/getting-started-with-extends-api
- type: Support
  url: https://www.extend.com/contact-us
- type: Blog
  url: https://www.extend.com/articles
- type: GitHubOrganization
  url: https://github.com/helloextend
- type: Login
  url: https://merchants.extend.com
- type: TermsOfService
  url: https://www.extend.com/terms
- type: PrivacyPolicy
  url: https://www.extend.com/privacy
- type: StatusPage
  url: https://status.extend.com
- type: ChangeLog
  url: https://docs.extend.com/changelog
- type: Authentication
  url: authentication/extend-authentication.yml
- type: Conventions
  url: conventions/extend-conventions.yml
- type: Idempotency
  url: conventions/extend-conventions.yml
- type: LLMsTxt
  url: llms/extend-llms.txt
- type: WellKnown
  url: well-known/extend-well-known.yml
- type: MCPServer
  url: mcp/extend-mcp.yml
- type: Conformance
  url: conformance/extend-conformance.yml
- type: Lifecycle
  url: lifecycle/extend-lifecycle.yml
- type: Sandbox
  url: sandbox/extend-sandbox.yml
- type: Webhooks
  url: asyncapi/extend-webhooks.yml
- type: DataModel
  url: data-model/extend-data-model.yml
- type: Components
  url: components/extend-components.yml
- type: Packages
  url: packages/extend-packages.yml
- type: SDKs
  url: packages/extend-packages.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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